FTP – File Transport Protocol - 20/21, SSH – Secure Shell - 22, SFTP – Secure File Transport Protocol (uses SSH) - 22**, SMTP – Simple Mail Transport Protocol - 25, TACACS – Terminal Access Controller Access-Control System - 49, DHCP – Dynamic Host Configuration Protocol - 67/68, Kerberos - 88, IMAP4 – Internet message access protocol version 4 - 143/993, SNMP – Simple Network Management Protocol - 161/162, LDAP/s – Lightweight Directory Access Protocol - 389/686, POP3 – Post Office Protocol version 3 - 110/995, NNTP – Network News Transfer Protocol - 119, TFTP – Trivial File Transport Protocol - 69, FTPs - File Transfer Protocol secure - 990, Secure Real-Time Transport Protocol / Secure RTP - 5061, Secure network time protocol - SNTP - 123,

Secure Ports Domain 3.0

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